Researchers found human-driven pollution affecting world's cave systems

NEW YORK: Researchers have found that human-driven pollution can even change the environment underground as surface water flows through agricultural and urban areas, it collects bacterial contaminants before entering cave systems.

The research, published in the journal PLoS One, looked into the Monte Conca cave system on the island of Sicily which is a vast system of springs and pools, sitting below a nature preserve.

The Monte Conca cave system might be presumed to be one of the few places untouched by human-driven pollution. But the study showed that microbial communities in the pools of water in the Monte Conca cave show signs of being altered by pollution from above.

The research by the University of South Florida microbiology and geoscience team found that water flowing through the vast cave system produced changes in the microbial communities between the wet and dry seasons, with the microbial communities differing in bacterial composition and ecological functions.

The long-term impacts of these surface-derived bacterial contaminants or their impact on groundwater sources is currently not well known, said lead author Madison Davis of USF's Department of Cell Biology, Microbiology and Molecular Biology. (IANS)

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